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            <h1>智能词汇学习，<br>让学习更轻松有效</h1>
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            <h2>核心功能</h2>
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                    <h3>全面教材覆盖</h3>
                    <p>覆盖各大版本教材，小学、初中、高中全阶段同步学习</p>
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                    <h3>自定义词库</h3>
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                        <li>人教版英语词汇</li>
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                    <h3>初中阶段</h3>
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                        <li>初中必备词汇</li>
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                    <h3>高中阶段</h3>
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                        <li>高中核心词汇</li>
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                        <li>专题词汇训练</li>
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